11622 clean up rarer mandoc lint warnings

*** 9,19 ****
  .SH NAME
  netdir, netdir_getbyname, netdir_getbyaddr, netdir_free, netdir_options,
  taddr2uaddr, uaddr2taddr, netdir_perror, netdir_sperror, netdir_mergeaddr \-
  generic transport name-to-address translation
  .SH SYNOPSIS
- .LP
  .nf
  \fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lnsl\fR [ \fIlibrary\fR...]
  #include <netdir.h>
  
  \fBint\fR \fBnetdir_getbyname\fR(\fBstruct netconfig  *\fR\fIconfig\fR,
--- 9,18 ----
*** 56,66 ****
  .nf
  \fBchar *\fR\fBnetdir_sperror\fR(\fBvoid\fR);
  .fi
  
  .SH DESCRIPTION
- .LP
  The \fBnetdir\fR functions provide a generic interface for name-to-address
  mapping that will work with all transport protocols. This interface provides a
  generic way for programs to convert transport specific addresses into common
  structures and back again. The \fBnetconfig\fR structure, described on the
  \fBnetconfig\fR(4) manual page, identifies the transport.
--- 55,64 ----
*** 183,193 ****
  The \fBnetdir_options()\fR function is used to do all transport-specific setups
  and option management. \fIfildes\fR is the associated file descriptor.
  \fIoption\fR, \fIfildes\fR, and \fIpointer_to_args\fR are passed to the
  \fBnetdir_options()\fR function for the transport specified in \fIconfig\fR.
  Currently four values are defined for \fIoption\fR:
- .br
  
  .in +2
  \fBND_SET_BROADCAST\fR
  .in -2
  .br
--- 181,190 ----
*** 301,321 ****
  .LP
  The \fBnetdir_sperror()\fR function returns a string with an error message that
  states the cause of a name-to-address mapping failure.
  
  .SH RETURN VALUES
- .LP
  The \fBnetdir_sperror()\fR function returns a pointer to a buffer which
  contains the error message string. The buffer is overwritten on each call. In
  multithreaded applications, this buffer is implemented as thread-specific
  data.
  .sp
  .LP
  The \fBnetdir_getbyname()\fR, \fBnetdir_getbyaddr()\fR, and \fBnetdir_options()\fR
  functions return \fB0\fR on success and a non-zero value on failure.
  .SH ATTRIBUTES
- .LP
  See \fBattributes\fR(5) for descriptions of the following attributes:
  .sp
  
  .sp
  .TS
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*** 326,333 ****
  _
  MT-Level        Safe
  .TE
  
  .SH SEE ALSO
- .LP
  \fBgethostname\fR(3C), \fBgetnetconfig\fR(3NSL), \fBgetnetpath\fR(3NSL),
  \fBnetconfig\fR(4), \fBattributes\fR(5)
--- 321,327 ----